Mother in law knows best?

sumtiems the bahu dus treat the saas nicely but the saas is always *****y… honestly i m such i mind my own business and dun talk mch or interfere… its only when she is nosy and tries to teach me things unnecessary that i want to retaliate in response.. so is saas just keeps her mouth shut and talk when necessary we bahus dun need to talk back or argue.. trust me.